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Rehtaeh Parsons' father says the Canadian Armed Forces member arrested this week for allegedly making inappropriate comments using a defence department computer is the father of the young man convicted of distributing child porn of his dead daughter.

Glen Canning alleges the man edited his quotes on Rehtaeh's Wikipedia page, and that he's left harassing comments on his personal webpage before.

Military police confirmed they arrested and questioned an Armed Forces member on Tuesday as a result of their investigation into allegations of "inappropriate comments posted online from DND computers."

They wouldn't say whether the arrest is connected to Rehtaeh's case.

But Canning said it is. He wrote on his blog that the investigation started last year when he received anonymous comments on his personal website disparaging his daughter.

According to screenshots posted by Canning, one comment said the teen, whose parents allege she was raped, was "caught in the act simply doing what she loved."

Canning tracked the comments to a DND IP address in October 2014 and reported it to the military police, he said.

Canadian Forces Military Group spokesman Maj. Yves Desbiens confirmed the investigation that resulted in Tuesday's arrest began Oct. 6, 2014.

Earlier this month, officials said they were investigating allegations a defence department computer was used to make changes to Rehtaeh's Wikipedia page.

According to Wikipedia's revision history, on Jan. 29 someone changed a quote from Canning that initially read: "The two boys involved in taking and posing for the photograph stated Rehtaeh was throwing up when they had sex with her. That is not called consensual sex. That is called rape." The revision changed the quote to "That is called consensual sex."

"Yesterday morning a Halifax military police officer called and told me that had made an arrest related to my complaint and the Wikipedia edits and I was told his name," Canning wrote Wednesday.

"The person I named in my complaint last October is the person they arrested."

The man cannot be named so as to protect the identity of his now 20-year-old son, who was a minor when he shared a graphic picture of himself and Rehteah, Canning said.

The young man pleaded guilty to distributing child porn earlier this year.

Another 20-year-old man pleaded guilty to making child porn for taking the picture.

Rehtaeh, 17, was taken off life-support in April 2013 following a suicide attempt after the explicit photo of her was circulated amongst her peers in Cole Harbour, N.S.

Her parents maintained she was too intoxicated to consent, but police said there wasn't enough evidence to pursue sexual assault charges.

The case made international headlines and prompted provincial and federal legislation against cyberbullying and revenge porn.